河北省的杜松林是残存的天然林。
The forest of Juniperus rigida is a natural residual forest in Hebei province.
对油松天然林的林分结构进行了研究。
Natural forest stand structure of Pinus tabulaeformis was studied.
全面组织实施天然林保护工程。
Comprehensively Organizing and Implementing the Natural Forest Protection Project.
探讨了30年生油松天然林的水文效应。
The hydrologic effects of 30-year old natural Chinese pine forests have been measured.
四川省在我国最早实施天然林保护工程。
Sichuan province is the earliest district which carried out the project of natural forest resource protection in our country.
次生林就是经过砍伐后又长起来的天然林。
A secondary forest is a natural forest formed after the original forest was felled.
我们要保护这一带的天然林，严禁乱砍滥伐！
We must protect the natural woods here, and strictly forbid the cutting down of trees.
特别是天然林适用性较差，对其进行新的分类。
So the authors make new classification and name as the classification of forest management type.
研究以天然林资源保护工程为例，展开了实证分析。
The research also do some empirical work take the natural forest protection project (NFPP) for instance.
在经济生态化的背景下，天然林资源保护意义重大。
Natural forest conservation plays a very important role at the background of the ecology-based economy development.
天然林资源保护工程开始启动，林业投入进一步加大。
The natural forest protection project had initiated, and input into forestry was further enlarged.
天然林的演替格局一般趋势是从集聚分布趋于均匀分布。
The general trend of the natural forest pattern is from amass type to uniform type.
提供公共物品的天然林资源是一种缺乏需求弹性的商品。
It is that public goods of offering is a merchandise for lacking demand elasticity.
中国实施天然林保护工程后，会发生木材资源的短缺现象。
The lack of wood resources would be occurred after implementing nature forest protected project.
阐述天然林多目标综合管理概念、原则、方法和管理程序。
The paper elaborates the concept, principle, method and procedures of multi-objective integrated management of natural forest.
经林龄转移资料归一化处理，构造出三类天然林林龄转移概率矩阵。
Through processing these data, the transfer probability matrixes of three kinds of natural forest age were constructed.
依据历年调查资料，对麻池背油松天然林的林分生长结构进行了研究。
Based on survey resources in the past years, natural forest stand structure of Pinus tabulaeformis in Machibei was studied.
中国因实施天然林保护工程，形成过剩的林业工人和闲置的采运机械设备。
China is involved in the preservative project of natural forest with a great number of idle forest workers and felling and transporting tools.
本文提出了阿木尔林业局实施天然林资源保护工程的基本思路和主要目标。
According to the situation of natural forest in Amuer Forestry Bureau, the authors of this paper present the basic thoughts and primary objects of executing protection engineering in these areas.
云杉是青海省县主要的天然林资源，也是荒山造林和城镇绿化的优良树种。
Picea is not only major natural forest resources in Qinghai, but also fine tree species of afforestation and urban greening.
加强天然林保护，建立自然保护区，对保存珍贵的沙地物种资源具有重要意义。
It is of important significance for preserving precious species resource in sandy land to strengthen the protection of natural forest and set up natural protection area.
他们认为，如果那些津贴不到位，新的森林就会又变为农田，砍伐天然林又会出现。
They suggest that if the subsidies were to end, new forest could be converted back into cropland and natural forest logged again.
中国是一个森林赤字国家。主要天然林大量减少，木材存量下降，森林质量恶化。
China is a forest deficit nation. The main natural forests have been greatly decreased, timber stocks have dropped, the quality of forests has declined.
自从国家实施天然林保护工程以后，非木质资源的利用受到越来越多的关注和重视。
Since the nation has implemented the natural forest protection project, non-wood resources are taking more and more attention.
为减轻实施天然林保护工程对木材生产带来的压力，加快用材林基地建设势在必行。
Its imperative to accelerate the construction of timber forest base, in order to make up the shortage of timber, which resulted from the protection of natural forest, for the forest production.
它与天然林保护工程紧密衔接，可使森林防火由单纯的消耗型变成有开发功能的经营型。
When combined with Natural Forest Conservation Project, this technology can transform forest fire prevention from consumption type into developing type.
本文对保护四川国有天然林资源，提出了森工企业调整产业结构及调整内容、方法和注意问题。
The article advanced contents, means and problems attended of adjusting industry structure of forest enterprises in order to protect natural forest of state in sichuan province.
现代林业以生态环境建设为重点，采用生态系统管理模式，主张使天然林尽可能处于自然状态。
Modern forestry pays more and more attention to ecological construction. Ecosystem management has been introduced to forestry so as to keep forests in their natural features.
现代林业以生态环境建设为重点，采用生态系统管理模式，主张使天然林尽可能处于自然状态。
Modern forestry pays more and more attention to ecological construction. Ecosystem management has been introduced to forestry so as to keep forests in their natural features.
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